Question

The chemical processes in the production of steel from haematite ore involve ______.

Options

• reduction

• oxidation

• reduction followed by oxidation

• oxidation followed by reduction

Answer 1

The chemical processes in the production of steel from haematite ore involve oxidation followed by reduction.

Explanation:

Haematite ore (Fe₂O₃) contains iron in the oxidised form. During the extraction of iron in the blast furnace, the following steps occur. Oxidation of impurities like carbon and sulphur to remove them. Then, the reduction of haematite to iron by carbon monoxide (CO). So, the process involves oxidation followed by reduction.